FeyNobg is an open-source background removal model from Feyninc, built on BiRefNet for high-resolution cutouts. Drop in any image and get a transparent PNG with the subject preserved and fine edges (hair, fur, product silhouettes) handled cleanly. No prompt needed: just the image, with an optional seed for reproducibility. Strong on camouflage, low-contrast scenes, and detailed boundaries. Ideal for ecommerce cutouts, game character isolation, marketing composites, and any pipeline that needs reuse-ready layers.